Inverted gas-burner.



PATENTED JULY so, 190'?.

" A. P. THOMPSON.

INVERTED GAS BURNLR.v

APPLIQATION FILED MAY 14,1901.

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AUGUSTUS FRANKLIN THMPSON, OF HNTINGTON, WEST VIRGINIA.

INVERTED GAS-BURNER.

No. semis.

Specification of Letters Patent.

` Patented July 301eo7.

Application filed May 14,1907. Serial No. 373,637.

To all whom it may concern:

Be it known that l, AUGUSTUS FRANKLIN THOMP soN, a citizen of theUnit-ed States of America, and a resident of Huntington, county ofCabell, and State of West Virginia, have invented certain new and-usefulimprovements in vinverted Gas-Burners, of which 'the following is a fulland clear specification.

This vinvention relates more particularly to gas burners in which themantle is suspended in a pendent or inverted position.

The object oi this invention is to provide a'burner el this characterwhich is extremely simple in construction and neat in appearance andshall produce' a very powerful light, and is adapted to both artificialand natural gases,

'.he invention consists in the special arrangement, disposition andcombination of parts hereinafter described, and vshown in theaccompanying drawings, in Whicl'- A Figi re 1I is a vertical sectiontaken centrally through the deduce; and Fig. 2 is a detail perspectiveview of the mar ile support.

Similar letters of reference indicate corresponding parts throughout theseveral views.

The gas supply pipe is indicated at A and to this pipe is atta'fhed thevalve plug B containing a needle valve (I adauted to control the ope ingD. :in adjustiney screw ll is tapped through the side of the valveplug:r and has a conical end to engage the rounded top ol the needlevalve to depress the saine to regulate the flew of gus. The valve heldin an open position by the spring;r l", and is pfevented from beingdisplaced by a pin G when.- the adjusting screw is out of engagementtherewith.

Suspended from the valve plug and attached thereto preferably byscrew-threads is a mixing chamber El. formed of two sections h and hfthev sides of the two sections being curved and diverged,inwardly andaway from each otlnr, the lower section li having a. tubular extension lprovided with a contracted mouth.

- The upper se ltion h 1s provided with openings .l and has fittedthereon a sl`de or damper l( of corresponding shape which is alsoorovided with openings to regisn ter with the openings .i in the 'topsection. The darm per is held to its seat by a shoulder upon the valveplug.

Secured to the'tubulzr extension l is the heating), tube li, tiattaching menus being an annular rib 'i on the extension and an annulargroove l in the heating tithe, whereby the two pari s can be sprung intoengage- .1nei 1t, the parts loeing made of thin metal for tir-` purpose.At the bottom or mouth end of the heatingy tube L is secured a combinedmantle support and burner tip M, secured thereto by indentations, asshown in Fig. 1, or by screw-threads as shown plainly in Fig. 2. Theburner tip is formed by contracting the mouth of the shade support, asclearly shown. Intermediate of its ends the heating tube L'is providedWith an exterior annular rib l2 upon which rests the shade holder N,comprising a solid top n and a depending annular liange n provided withventilating openings'n'i adapted to afford relief from eoi'igestion ofheated prod\icts, -and supporting screws agito hold x the shade inposition. l

ln operation the needle valve C and the mixing chamber valve or' damperK are adjusted to the quality and quantity of gas to be used, the flowof ,gas` draws into the mixing chamber a suitable quantity of air toform a suitable mixture, beingr retarded within the mixing chamber bythe Contracted mouth of the eX tension of the chamber'to allow of propermixrhg. The mixture is then forced into the heating tube, where theproducts are thoroughly heated and expanded forining a combustibleproduct ready for ignition; the miie, ture lis then forced through thecontracted end of the burner tip to the llame. By placing the mixingchainber above and in close proximity to the shade holder, the radiationfrom the top of the shade holder tends (tto heat the air before being,ldrawn into the mixing chamher.

It will be observed that the heatingr tube is provided With a contractedinlet and outlet, thereby assuring a perfect combustible product, andpreventing back: flare of the flame and also providing,r a lbright andsteady light.

Having thus fully described my invention, what l claim and desire tosecure hy Letters Patent is: i In an inverted burner, the combinationo!" an adjustable ,zas inlet and a mixingr chamber depending; therefromand provided with a depending," tubular extension havin:I a con traetedmouth, a depending heating,r tube tehseopiug; up over said depending;extension, means being,r provided for removably locking: the healim,ytube to the extension, :i mantle support :ind burner tip :it the lowerend ol' the heating tube, und u u'lobe support supported on the heatingtube.

in testimony whereof l hereunto zltiix my signature in the presence oftwo witnesses this (1th day ot Muy, 1007.

AUGUS'I'US FRANKLIN 'IIIOMISON- Witnesses:

I `Loru S. CHAPMAN, Geenen L. lewMAN.

